Exact(1)
To study the effect of noise on the retrieval and classification, additive and multiplicative noise of various variances were applied to the database.
Similar(59)
In the case of multiplicative noise, variance of the noise is a function of the signal and the noise variance is higher when amplitude of the signal is higher.
As noted above, this formulation is very general and contains as particular cases a great number of classical estimation problems, such as estimation of signals in additive and/or multiplicative noise, estimation of signals observed through random channels, random channel identification, etc. [15].
We will assume that the multiplicative noise is of Ito form [57].
The existence of multiplicative noise greatly limits the applicability of independent component analysis (ICA), because it does not take into account the existence of the noise.
It can inhibit the vegetation system from developing rapidly and reduce the stability of the system by increasing of intensity of multiplicative noise and time delay.
Hence multiplicative noise removal is of momentous significance in coherent imaging systems and various image processing applications.
The generality of this formulation allows the solution of a wide range of problems, including general second-order processes, infinite observation intervals, additive and/or multiplicative noise, noiseless observations, estimation of functionals of the signal, etc.
Note that the effective number of samples can also be thought of as a measure of multiplicative noise being added to all estimates in the pooling process (i.e., 'global noise'; Dakin et al., 2005).
An excellent criterion for the appreciation of the quality of a denoising method conceived for the reduction of the multiplicative noise is based on the computation of the method noise.
The proposed method works equally well in the case of multiplicative noise as well with the resulting root mean square error of 0.34.
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